Lever.



A. L. WYMAN.

LEVER.

APPLICATION FILED OCT. 7, 1912.

1,089,61 5. Patented Mar. 10, 1914.

2 SHEETS-SHEET 1.

'vers, of which the following is a specifica- UNITED STATES PATENTOFFICE.

ALTON L.

WYMAN, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR TO WINONA WAGON COMPANY, OFWINONA, MINNESOTA, A CORPORATION.

LEVER.

Specification of Letters Patent.

Patented Mar. 10, 1914.

Original application filed May 18, 1912, Serial No. 698,260. Divided andthis application filed October 7, 1912. Serial No. 724,301.

To all whom it may concern Be it known that I, ALTON L. WYMAN, l' acitizen of the United States, residing at Minneapolis, in the county ofHennepin and State of Minnesota, have invented certain new and usefulImprovements in Letion.

My invention relates to a lever system and has for its object theprovision of a lever system for control of motor vehicles or the likesuch that the various control deviceschange speed, reverse and brakesmaybe operated by a single lever.

It is also an object of my invention to arrange this lever system inconnection with a lever stand which may readily be removed from one partof a framework and attached to another part without disarranging anypart of the lever system proper, but merely require the disconnection ofthe links by which the lever mechanism is connected to the differentparts to be operated thereby.

The full objects and advantages of my invention will appear inconnection with the detailed description thereof and are particularlypointed out in the claims.

In the drawings, illustrating the application of my invention in oneform,Figure 1 is a front elevation of the lever stand and parts carriedthereby. Fig. 2 is a section on line 22 of ltig. 1. Fig. 3 is alongitudinal sectional elevation through the lever stand, and Fig. 4 isa sectional plan taken on line 4-4: of Fig. 3.

The lever system employed comprises a single lever having three possiblemovements, any one of which connects with mechanism for operating thetransmission differentially. This lever mechanism comprises rimarily atubular stand 10 which is secured to a base plate 11, said base platehaving bolted in parallel spaced relation therewith a similar plate 12,as indicated mostclearly in Figs. 1 and 3, plate 11 being provided witha marginal flange 13 and plate 12 with a similar marginal flange 14 sothat when said plates are secured together by means of'bolts 15 ahousing is formed between the plates. The flanges 13 and 14 extendaround three sides of the plates but are omitted on the fourth side sothat the chamber formed in the said housing open at one side. The flange14 is integrally extended at one side in a lip 16 and by means of bolts17 extendingthrough such lip and half openings in the flanges 13 and 14,the entire lever stand is removably secured to a frame member 18. To thetop of tubular stand 10 is secured a cup-like cylindrical head 19 to thetop of which is bolted a cap 20. The cylindrical head, has formed at oneside thereof two peripheral grooves 21 and 22 connected by a passage 23extending from the center of groove 21 to one end of the groove 22.

Within the tubular member 10 is a tubular sleeve 241- which has securedthereto in the housing formed by the plates 12, 13, a pair of disks 25,26, disk 25 having a pair of teeth 27 positioned on said disk atseparated points thereof, while disk 26 is provided with a single tooth28 relatively positioned midway between teeth 27 on disk 25. Obviously,the two disks 25 and 26 with the teeth thereon may be cast in a singlepiece if desired. Through the center of sleeve 24 extends a shaft 29,the same being freely rotatable in sleeve 24 and having secured to thelower end thereof an arm 30. As shown, the arm 30 is without the housingformed by plates 11, 12, but it is practicable to widen said housing andmount the arm 30 within the same beneath the disk 26 in which case saidarm would extend out through the open end of the housing beforementioned. Secured to the upper end of sleeve 21 and within the cavityof the cup member 19 is a hub 31 which has a shoulder 32 forming abearing in they bottom plate of member 19, the hub 31 being rovided withan arm 33 extending to a.po1nt adja cent the slot 21 in the wall ofmember 10.

Loosely mounted on shaft 29 and resting upon hub 31 is a collar 34provided with an arm 35. Pivotally secured to the end of arm 35 by meansof a bolt 36 extending through arms 37 and 38 straddling the arm is alever 39. arms 38 and 37 being integral extensions of said lever andbeing expanded so as to embrace or extend about the collar 34, and theexposed part of the hub 31. Above the collar 34 and secured to shaft 29is a hub 40 extending from which is an arm 11, the arm 41 being parallelwith the 33 and hub 31. The lever 39 is held normally in balancedposition between arms 41 and 33 by means of a leaf spring -12 secured toarm 41 and a similar spring 43 is secured to arm 33. The lever 39 isthus held not only in balanced position between' the arms 33 and 41 butwithin the passage 23 between slots 21 and 22, which passage is ofapproximately the width of the lever so that the margins of the wall ofmember 19 at such passage will normally hold the lever 39 from movementin either direction. The arm is broad and provided with a pair of wings44, 45 forming a space between the same adapted to receive the shank oflever 39 when the same is pressed downwardly against the force of spring43. 'The lever 41 is provided with corresponding wings 46 adapted toreceive between them the shank of lever 39 when the same is pressedupwardly against the force of spring 42. It will thus be seen that whenlever 39 is pressed down between wings 44 and 45, it may be moved ineither direction in the slot 21, and when so moved will carry with itarm 33 which will oscillate the sleeve 24 in either of said directions.

Notches 47 and 48 areformed above at the ends of the slot 21 forreceiving and holding the lever 39 in either of its extreme positions.\Vhen the lever 39 is pressed upwardly between wings 46 on arm 41, itmay be moved in one direction only in slot 22, carrying with it the arm41 which will thereby rock shaft 29 and arm 30 thereon. Upon a post 49secured between plates 12 and 11 is pivoted a hub 50 having on one sidethereof a segment 51 formed with two circular engaging portions 52, 53and an intermediate notch 54 for receiving the tooth 28 on disk 26.Secured to hub 50 and extending away from segment 51 is an arm 55.Pivotally mounted upon post 49 above hub 50 is a hub 56 having thereon asegment 57 formed with two notches 58 and also formed with circularengaging portions 59 similar to engaging portions 52, 53; and fast, onhub 56 and extending outwardly from segment 51 is an arm 60. The member19 is closed by a cap 66. All of the above parts are comprised in thesingle removable lever stand removably secured by means of bolts 17 toany desired frame member 18.

The frame member 18 may be any part of a motor vehicle or other machineto which my lever system is to be applied such as the frame member ofthe traction engineer the hound of the motor wagon, as shown in myco-pending application, Serial Number 698,260, filed May 18, 1912, ofwhich this application is a division.

The arms 30, 55 and 60 are the actuating members of my lever system andthese will be connected by means of links 67, 68 and 69, respectively,with the control system. When the lever 39 is brought into its upperposition in operative engagement with arm 41'and is oscillated in theslot 22 the shaft 29 alone will be operated and in one direction onlyfrom normal position which will, through arm 30 and connecting link 67clutch the engine in for normal or high speed operation of the-motorvehicle in a forward direction. When the lever 39 is brought into itslower position so as to be in operative engagement with arm 33 in theslot 21 it may be swung in both directions from its normal orinoperative position. In whichever direction the lever 39 may be op:erated both of segments 25 and 26 will be simultaneously oscillated inthat direction which will result in actuating first the arm 55 throughtooth 28 engaging notch 54 and thereafter the arm 60 through tooth 27engaging one or the other of notches 58. The links 68 and 69 thereforeare each actuated consecutively and independently whenever the arm 44 iscaused by lever 39 to swing in one or the other direction in slot 21,the actuation of links 68 and 69, of course, being in oppositedirections according to whether lever 39 is moved to right or left inslot 21. There results from this operation, first, a shifting of membersin the transmission through link 68, in whichever direction it may beoperated, such that when the drive shaft is clutched in the same will bedriven at reduced speed, and second, through the operation of link 69,the drive shaft will be clutched in to operate ahead when the link 69 isactuated in one direction and will be clutched in to operate the reversewhen the link 69 is actuated in the opposite direction. Through thesingle lever 39, therefore the transmission of the motor is controlledfor full speed ahead, slow speed ahead and slow speed reverse. It willbe seen also that it is impossible to set the motor for reverse speedwithout first throwing off the high speed since the reverse of the motorcan only be effected by actuation of arm 33 when lever 39 operates inslot 21, whereas high speed can only be effected through arm 41 whenlever 39 operates in slot 22.

The advantages of my improved lever system will be apparent. Such adevice may be used with especial advantage in connection with motorvehicles intended for agricultural or farm use or for general purposesin which the operator will not be a'skilled mechanic or one having thequalifications of the ordinary chauffeur. The use of the single leverhaving the three movements for elfecting two speeds ahead and reversealwa s at slow speed, and which reverse cannot e effected without firstthrowing out the high speed will result in safeguarding the motor andtransmission and preventing accident from improper operation of thedevice through ignorance on the part of the operator.

While my lever system is of particular advantage when employed inconnection with motor vehicles, it obviously may be used in other typesof machinery where itis desirable to control a plurality of operationsby a single lever, and such use falls within the scope of my invention.

I claim:

1. A lever system comprising a base forming an 'inclosed chamber, aplurality of arms pivotallymounted within said chamber and extending outof the same, each of said arms being provided with diflerentiallypositioned notches, rotary members within said chamher having teeth forengaging said notches, land a lever for operating the rotary memers. M p

2. A lever system comprising a base forming a closed chamber, aplurality of arms pivotally mounted within said chamber and extendingout of the same, each of said arms being provided with diiferentiallypositioned =notclfes, rotary members within said chamber having'teeththereon successively engageable with the notches of the severalpivotally mounted arms for rotating said arms successively andindependently, and a lever for operating the rotary members.

3. A lever system comprising a base forming an inclosed chamber, atubular standard on said base, a plurality of independent movablemembers mounted Within said base, a sleeve in the tubular standard, aplurality of rotary members attached to the sleeve, and a lever foroperating the sleeve.

In testimony whereof I afiix my signature in presence of two witnesses.

ALTON L. WYMAN.

litnesses:

H. A.'BOWMAN, F. A. WHITELEY.

